Audi adds more powerful versions of its RS 6 and RS 7

Audi will offer more powerful versions of its RS 6 Avant wagon and RS 7 Sportback hatch starting this fall. The new versions don the Performance designation, and their output rises by 30 hp to a new total of 621 hp. Both arrive as 2024 models, with the RS 6 Avant Performance priced to start at $126,895, and the RS 7 Sportback Performance at…